Segment and Revenue Information - Revenue from External Customers from Other Activities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Total customer revenues	$ 501,095	$ 485,860
External Customer Revenue
Segment Reporting Information [Line Items]
Total customer revenues	83,824	79,085
Aircraft maintenance, modifications and part sales | External Customer Revenue
Segment Reporting Information [Line Items]
Total customer revenues	42,073	37,540
Ground services | External Customer Revenue
Segment Reporting Information [Line Items]
Total customer revenues	23,665	25,101
Other, including aviation fuel sales | External Customer Revenue
Segment Reporting Information [Line Items]
Total customer revenues	$ 18,086	$ 16,444